<p>Raw experimental data corresponding to Figs 5–16 of this article. The Excel file contains the original numerical data used to generate the figures, including load–displacement curves, ultimate bearing capacity, axial force distribution along the pile shaft, and the evolution of end-bearing and shaft resistance under different under-reaming angles and embedment depths.</p>

Raw experimental data corresponding to Figs 5–16 of this article. The Excel file contains the original numerical data used to generate the figures, including load–displacement curves, ultimate bearing capacity, axial force distribution along the pile shaft, and the evolution of end-bearing and shaft resistance under different under-reaming angles and embedment depths.